This Genie G3T-BX is a 3 button mini key chain remote that can control up to 3 different Genie Intellicode openers. This unit will work with older 390 MHz Intelicode openers as well as the new 315 MHz Intellicode 2 openers. Compatible with all Genie Intellicode, and Overhead Door CodeDodger openers made from 1997 to present day.